Treadle mechanism.



- J. G. L. BAUER.

TRBADLE MECHANISM.

APPLICATION FILED APR. 3, 1913. 1,1 03,471. Patented July 14, 1914,

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JOHAN GUSTAV LUDWIG BAUER, OF CHICAGO, ILLINOII IS.

TREADLE MECHANISM.

Specification of Letters Patent.

Application filed April 3, 1913. Serial No. 758,581.

To all whom it may concern:

Be it known that I, J OHAN GUSTAV LUD" wre BAUER, a citizen of theUnited States of America, and a resident of Chicago, county of Cook, andState of Illinois, have invented certain new and useful Improvements inTreadle Mechanisms, of which the following is a specification.

The main objects of this invention are to provide an improved form ofcontrol mechanism adapted to be actuated for the purpose of shiftingcertain parts of power driven mechanisms into and out of their operatingpositions; to provide control mechanism comprising a single operatingelement or member which is adapted to be actuated so as to shift theseveral parts of said power driven mechanism separately orsimultaneously; to provide control mechanism of this kind wherein theoperating member is particularly adapted to be operated by the feet; toprovide an improved arrangement of said mechanism whereby the operationof said operating member for selecting the connections leading to theparts of said power driven mechanism is simple and positive; to provideimproved means normally urging the several connections of said controlmechanism into operative positions with said operating member; toprovide mechanism of this kind wherein the operating member is adaptedto perform the functions heretofore dependent upon several controlmembers; and to provide mechanism of this kind which is particularlyadapted for use on multi-cylinder printing presses.

An illustrative embodiment of this invention is shown in theaccompanying drawings in Which- Figure 1 is a plan view partlysectional, of the control mechanism. Fig. 2 is a side elevationof the.same. Fig. 3 is a similar view but showing some of the parts shifted.Fig. 1 is a side elevation as viewed from the plane of the line AA ofFig. 2. Fig. 5 is a detail of the lower end of the operating element.detail taken on the line 13-13 of Fig. 2.

In the controlling of power driven mechanism where several parts thereofare arranged to be shifted into and out of operative position, it hasheretofore been necessary to arrange several independently operatedcontrolling members or elements with Fig. 6 is a sectional Patented July14., 1914..

connect-ions leading from each to the red spective parts which were tobe shifted. In power driven mechanism thus controlled it is oftendifiicult to obtain a speedy and accurate shifting of the parts in caseof emergency for thereason that the operator in attempting to make ahasty selection of operating members is likely to become confused.Particularly is this found to be true if the operator attempts to makethe selection when conditions are such as to require his eyes to bedirected in such a way as to allow but little if any opportunity tocarefully observe the controlling members when making the selection.This invention is designed to overcome these difficulties by providing asingle controlling element which obviates the necessity of making aselection between a number of cont-rolling members and requires that theoperator only learn the method of operation of the single controllingelement.

. In the construction herein shown in the drawings the control mechanismcomprises an operating element or member 1 mounted on the frame 2 so asto be longitudinally shifted for shifting the members 3, 4, and i 5which are respectively connected to the bell crank levers 6, 7 and 8,from which connections lead to the parts of the power driven mechanismto be controlled.

The operating element 1 is in the form of a bar extending through a slot9 formed in the transverse ledge 10 of the frame 2. A longitudinallydisposed slot 11 is formed in element 1 near the upper end thereof inwhich is received the pivot pin 12 supported in the bearing 13 securedto the under side ofthe ledge 10. A spring 14 coiled on the pin 14 isprovided with an arm 15 which engages the element 1 at the upper end ofthe slot 11 and normally urges the element toward its uppermost positionas shown in Fig. 2. An anti-friction roller 16 is carried on the arm 15of the spring 143 which forms the engaging surface between the springand element. 7

The members 8, 4:, and 5 are in' the form of rods and are bent at theirlower ends to form loops 17, 18, and 19, and the extreme ends are bentto form eyes in which the pivot pins are received for connecting them totheir respective levers 6, 7, and 8. The members 3, 4:, and 5 extend upalong the narrow sides of the element 1 and are embraced by the strapsor parts 20 and 21 which'may be integrally formed on the element 1whereby the members are guided in their respective positions Springs 22and 23 are interposed between the loops 17 and 18 and lugs 24 and 25carried on the respective levers 6 and 7 and these normally urge theupper ends of the respective members' against the sides of the element-1 into positionto be engaged by the shoulders 26 and 27 formed thereon.The springs 22 and 23 also tend to hold the members 3 and 4 against therespective shoulders 28 and 29 formed on the'part 20 and center theele-.

ment 1 whereby the upper ends of the members 3 and 4 are normally inposition for engagement with the shoulders 26 and 27.

The member 5 extends up along the element 1 at one side of the members 3and 4.

-An apertured lug 31 on the element 1 embraces the rod and serves. tocenter it with respect to the element 1 when the element is in itsnormal position, whereby the mem her is in position to be. engaged bythe shoulder 30. The levers 6, 7, and 8 are normally urged by means ofsprings 32, 33 and 34 into position to shift the connected members 3, 4,and 5 into their normal. upwardly shifted positions. The springs 32,

33, and 34 are interposed between hooks formed on the respective levers6, 7, and 8 and on the plate 35 secured to the frame 2. The shifting ofthe levers 6, 7, and 8 by said springs is limited by the pins orshoulders 36 and 37 which engage the levers so as to locate the ends ofthe members 3, 4, and

' 5 free of the respective shoulders 26, 27,

. her 5.

and 30. 7

With the mechanism arranged as shown, the member 5 is adapted to beshifted out of a position that would permit it to be engaged by theshoulder 30 only at such times as the operating element 1 is movedpivotally to shift one of the members 3 or ,4. 'It is sometimesexpedient,however, to

shift only the member 5 out of a position to be engaged by itsrespective shoulder 30 independently of the retraction of the members3and 4. This may be conveniently done by the use of a bar 38 slidablymounted in the bearings 39 and. connected to a .lever40, and having awedge shaped shoulder,- adapted to engagethe member 5. Lee ver 40 ispivoted on the frame 2 -at 41 and is'normally urged by. the spring 42 tore tract the wedge from the member 5. A notch 38 in the wedge 38 engagesthe adjacent bearing 39 and secures the wedge in its shifted positionfor retracting the mem-' The operating element 1 is preferably arrangedto be operated by means of the feet and is therefore provided with atreadle 43 having shoulders 43 at the sides thereof which are adaptedtobe en- 7, and 8, to the parts of the power drivenmechanism which areto be shifted and controlled. The construction herein shown has beendesigned with respect to a multi-cylinder printing press and the links45 and'46 are respectively connected to the first and second cylindersof said press, and the link 47 connects the lever 8 with the brake.

The operation. of the mechanism shown is as follows: In describing theoperation of this mechanism it will be assumed that itis connected foroperating a power driven printing press of the multi-cylinder type. Withthe operating mechanism in itsnormal position as shown in Fig. 2 bothcylinders are in printing posit-ion and the brake is released. If it isdesired to shiftoneof the cylinders out of its printing position, forinstance the first cylinder, will place the ball of his foot upon thetreadle 43 and press against the shoulder 43 at the left of Fig. 2,which will tilt the controlling element 1 sidewise on its pivot andcause the shoulder 29 on the part 20 to shift the member 4 outwardly sothat the upper end thereof will be moved out of position to be engagedby the shoulder 27 when the operating element 1 is depressed from saidpivotally shifted position. This same pivotal movement of the operatingelement 1 causes the apertured lug 31 to shift the member 5 to the rightof Fig. 2 so that it is also out of position to be engaged by itsrespective shoulder 30. (The position of these parts is shown in dottedoutline in Fig. 2). The operator then depresses the operating element 1and the member 3 being the only one in engagement with its respectiveshoulder is also shifted, the other levers 7 and 8 remaining in theirnormal positions. This shifting of the member actuates the lever 6 andcauses. the cylinder connected therewith, by means of the link 45, to beshifted out of its printing position. If it is desired to hold thecylinthe operator der in its shifted position the operator shifts theoperating element 1 to the left of Fig. 2 so as to cause the pivot pin12 to be rec eived in the transverse part 48 of the slot 11 whereby itis held againstmovement until released. The shifting of the secondcylinder from printing positionis eflected;

in a similar manner. I

If 1t is desired to remove both cylinders from prmting pos1t1on and atthe same time quickly stop the machine, the operator merely depressesthe operating element 1 whereby all three members 3, 4, and 5 aresimultaneously shifted therewith causinga shifting of the levers 6, 7and 8 of the mechanisms connected thereto.

As hereinbefore stated, it will sometimes be found to be expedient toshift the two members 3 and 4 without shifting the member 5, as would bethe case in a mult-i'cylin-fl der printing press when it was desired tomove both cylinders from printing position but not throw on the brake atthe same time.

In order to accomplish this the operatorfirst depresses the lever 40which causes the wedge 38 to shift the upper end of the member 5transversely outward from the plane of the operating element 1 so astobe free of the shoulder 30. The operating element 1 may then bedepressed whereby the members 3 and 4 will be shifted therewith.

Although but one specific embodiment of this invention has been hereinshown and described, it will be understood that numerous details of theconstruction shown may be altered or omitted without departing from thespirit of this invention as defined by the following claims.

I claim i 1. The combination of a'treadle, mechanism adapted to beactuatedby said treadle, [and means normally providing operativeconnection between said mechanism and treadle and adapted to be actuatedby a sidewise shifting of said treadle for releasing said mechanism,from said operative connec-.

tion. u j

2. The combination of a treadle, a plurality of mechanisms adapted to beactuated by said treadle. and means normally providing operativeconnection between all of said mechanismsand said treadle and adapted tobe actuated by a sidewise shifting of said treadle for individuallyreleasing said mechanisms, from said operative connection. j

3. The combination of a treadle, a plurality of mechanisms adapted to beactuated by said treadle, means normally providing.

operative connection between all of said mechanisms and treadle actuatedby a sidewise shifting of said treadle for individually releasing saidmechanisms from said operative connection, and means for lock ing saidtreadle .in its depressed position.

4-. The combination of a depressible treadle, a resilient arm located atone side of said treadle and engaging the same, and hen mally' urging itinto its elevated position,

mechanismadapted to be actuated by saidtreadle, and means normallyproviding 0perative connection between said mechanism and treadle andactuated by a sidewise shift ing of said treadle for releasing saidmechframe,

5. The combination of a depressible treasaid treadle and having an armengaging said treadle, and normally urging it into its elevated.position, mechanism adapted to be actuated by said treadle, and meansnormally providing operative connection between said mechanism andtreadle and adapted to be actuated by a sidewise shifting of saidtreadle for releasing said mechanism from said operative connection.

6. Control mechanism comprising a longitudinally shiftable operatingelement, a member shiftably mounted adjacent to said element, and havinga part thereof extending into positionto be engaged by said element soas to cause said member to be shifted with said element during itslongitudinal movement, said element being transversely shiftable, andmeans actuated by. the transverse shifting of said element and adaptedto retract said member from a position to permit said part to be engagedby said element so as to allow said element to beshifted longitudinallyindependently of said member.

7. Control mechanism comprising an operating element mounted to belongitudinally shifted, a member shiftably mounted adjacent to saidelement, a shoulder on said element, means normally urging said member.into position to be engaged by saidshoulder to cause a shifting ofsaidmember with said element, said element being adapted to be transverselyshifted and means actuated by the transverse shifting of said elementand adapted to retract said member from a position to be engaged by saidshoulder' so as to permit said element to be longitudinally shiftedindependently of said member.

8. Control mechanism comprising a frame, an operating element pivotallymounted on said frame and being also arranged to be longitudinallyshifted, a member shiftably mounted adjacent to said element, meansnormally urging said member into position to be shifted with saidelement when it is longitudinally shifted, and means actuated by thetransverse shifting of said element and adapted to retract said memberfrom a position to be engaged by said element, so

as to permit said element to be longitudinally shifted independently ofsaid member.

9. Control mechanism an operating element pivotally mounted on saidframe and longitudinally shiftable, a plurality of members shiftablymounted adjacent to said element and nor" mally urged into positions tobe engaged by said element, and moved therewith when it islongitudinally shifted, and means actuated by the transverse shifting ofsaid element adapted to .shift one of saidmembers out of position to beengaged by said element,

comprising a frame,

pin supported on said frame and received in said slot, means normallyurging said element to locate said pin in one end of said slot, aplurality of members pivotally mounted adjacent to said element andbeing shiftable therewith, a plurality of shoulders on said elementcorresponding respectively with said members, parts adjacent to theupper and lower ends of said element embracing said members, othershoulders on said element located adjacent to said lower embracingmember, means normally urging said members pivotally against said othershoulders and locating said members in po sition to be engaged by theirrespective said shoulders, said element being movable pivotally forcausing said second mentioned shoulders to shift one or more of saidmembers pivotally against the action of said means for retracting themfrom a position to be engaged by said first mentioned shoulders wherebysaid element may be longitudinally shifted independently thereof.

18. Control mechanism comprising a an operating element pivotallymounted thereon and longitudinally shiftable, a plurality of leverspivotally mounted on said frame, a plurality of members pivotallymounted on said levers and located in planes parallel to the planes ofmovement of said levers, a plurality of shoulders on said element, meansacting between said members and said levers for normally urging saidmembers into positions to be respectively engaged by said shoulders,other shoulders on said element adapted to be en gaged by said membersfor centering said element, said element being movable pivotally forcausing said other shoulders to shift one or more of said memberspivotally for retracting the same from a positionto be engaged bysaid'first mentioned shoulders, whereby said element may be shiftedwithout shifting said members.

19. Control mechanism comprising a longitudinally shiftable operatingelement, a member shiftably mounted adjacent to said element and havinga part thereof extending into position to be engaged by said element andshifted therewith, a lever mounted adjacent to said element and having apart thereof engaging said member whereby when said lever is operatedsaid part will shift said member out of position to be engaged by saidelement.

20. Control mechanism comprising a longitudinally shiftable operatingelement, a member shiftably mounted adjacent to said element and havinga part thereof extending into position to be engaged by said element andshifted therewith, an auxiliary lever mounted adjacent to said element,and a wedge operatively connected to said lever and adapted to beshifted thereby for engaging and retracting said member from a positionto be engaged by said element.

Signed at Chicago this 29th day of March 1913.

JOHAN GUSTAV LUDWIG, BAUER.

Witnesses:

EDWIN PHELrs, M. IRENE HUTCHINGS.

Copies of this patent maybe obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D- 6-

